2111562116999 has 4 divisors (see below), whose sum is σ = 2116264928400. Its totient is φ = 2106859305600.

The previous prime is 2111562116987. The next prime is 2111562117017. The reversal of 2111562116999 is 9996112651112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111562116999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111562116999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111562106999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351405027 + ... + 2351405924.

It is an arithmetic number, because the mean of its divisors is an integer number (529066232100).

Almost surely, 2^{2111562116999} is an apocalyptic number.

2111562116999 is a deficient number, since it is larger than the sum of its proper divisors (4702811401).

2111562116999 is an equidigital number, since it uses as much as digits as its factorization.

2111562116999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702811400.

The product of its digits is 524880, while the sum is 53.

The spelling of 2111562116999 in words is "two trillion, one hundred eleven billion, five hundred sixty-two million, one hundred sixteen thousand, nine hundred ninety-nine".